结论：肌萎缩侧索硬化存在神经肌肉接头损害。
Conclusions: there is functional alteration of neuromuscular junction in ALS.
拉索振动会使得其端部接头出现疲劳现象，在索锚处产生裂纹，破坏拉索的防腐系统，严重时还会引起拉索的失效。
It could lead to the joint's fatigue problem, create cracks in the cable anchor, damage the mitigate corrosion system and even cause cable invalidation.
接头上有接头杠杆，在拉索的拉动下能够压动顶杆，打开阀芯。
A joint lever is arranged on the joint, and can press the push rod when pulled by a guy cable to open the valve core.
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